Airborne signals of Pseudomonas fluorescens modulate swimming motility and biofilm formation of Listeria monocytogenes in a contactless coculture system

Food Microbiology, Год журнала: 2024, Номер 120, С. 104494 - 104494

Опубликована: Фев. 15, 2024

Язык: Английский

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The complex world of kefir: Structural insights and symbiotic relationships

Comprehensive Reviews in Food Science and Food Safety, Год журнала: 2024, Номер 23(4)

Опубликована: Июнь 7, 2024

Abstract Kefir milk, known for its high nutritional value and health benefits, is traditionally produced by fermenting milk with kefir grains. These grains are a complex symbiotic community of lactic acid bacteria, acetic yeasts, other microorganisms. However, the intricate coexistence mechanisms within these microbial colonies remain mystery, posing challenges in predicting their biological functional traits. This uncertainty often leads to variability milk's quality safety. review delves into unique structural characteristics grains, particularly distinctive hollow structure. We propose hypotheses on formation, which appears be influenced aggregation behaviors members alliances. In systematic colonization process driven metabolite release, orchestrating spatiotemporal rearrangement ecological niches. place special emphasis dynamic changes community. Spatially, we observe variations species morphology distribution across different locations grain Temporally, highlights succession patterns community, shedding light evolving interactions.Furthermore, explore underpinning formation stable composition. The interplay cooperative competitive microorganisms ensures balance, contributing community's richness stability. foster diversity stability, whereas bolster mutualistic symbiosis. By deepening our understanding communities, can pave way future advancements development diversification starter cultures food fermentation processes.

Язык: Английский

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Nickel-doped porous carbon anode microbial fuel cell to enhance the performance in wastewater treatment

Journal of Water Process Engineering, Год журнала: 2024, Номер 69, С. 106592 - 106592

Опубликована: Ноя. 24, 2024

Язык: Английский

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Unraveling the ecological interactions between dairy strains Bacillus licheniformis and Bacillus cereus during the dual-species biofilm formation

Food Microbiology, Год журнала: 2024, Номер 128, С. 104716 - 104716

Опубликована: Дек. 18, 2024

Язык: Английский

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OmpR (TCS response regulator) of Aeromonas veronii plays a major role in drug resistance, stress resistance and virulence by regulating biofilm formation

Microbial Pathogenesis, Год журнала: 2023, Номер 181, С. 106176 - 106176

Опубликована: Май 26, 2023

Язык: Английский

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Biofilms, mobile genetic elements and the persistence of pathogens on environmental surfaces in healthcare and food processing environments

Frontiers in Microbiology, Год журнала: 2024, Номер 15

Опубликована: Июнь 4, 2024

Biofilms are the natural state for bacterial and fungal species. To achieve surface hygiene in commercial facilities, presence of biofilms must be adequately considered. However, standard disinfectant sanitizer efficacy tests required by US-EPA European Committee Standardization (CEN) do not currently consider role environmental biofilms. This selective review will discuss what why they important. We also cover where commonly found healthcare food processing facilities explore how current antimicrobial test methods product registration Additionally, we a lack against may play development resistance due to exchange mobile genetic elements that occur readily biofilm matrix.

Язык: Английский

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Growth of Listeria monocytogenes in fresh vegetables and vegetable salad products: An update on influencing intrinsic and extrinsic factors

Comprehensive Reviews in Food Science and Food Safety, Год журнала: 2024, Номер 23(5)

Опубликована: Авг. 21, 2024

The ability of foodborne pathogens to grow in food products increases the associated safety risks. Listeria monocytogenes (Lm) is a highly adaptable pathogen that can survive and under wide range environmental circumstances, including otherwise inhibitory conditions, such as restrictive cold temperatures. It also long periods adverse conditions. This review examines experimental evidence available for survival growth Lm on fresh vegetables ready-to-eat vegetable salads. Published data indicate that, depending certain intrinsic (e.g., nutrient composition) extrinsic factors storage temperature, packaging atmosphere), variety fresh-cut minimally processed Studies have shown modified atmosphere packaging, relative humidity, pH, water activity, background microbiota vegetables, microbial strain peculiarities, type availability significantly impact fate influence these either promote its or decline. For example, some studies inhibit salads, but others reported promoting, neutral, insignificant effect Lm. A relevant literature indicated most influencing related interacts with other factors. synthesis contributes body knowledge possible strategies improving measures minimize risk Lm-associated outbreaks involving

Язык: Английский

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Biofilm formation under food-relevant conditions and sanitizers’ tolerance of a Pseudomonas fluorescens group strain

Journal of Applied Microbiology, Год журнала: 2023, Номер 134(6)

Опубликована: Июнь 1, 2023

The aim of this study was to determine the biofilm-forming ability a strain belonging Pseudomonas fluorescens group isolated from dairy environment under food-relevant conditions. Moreover, effects commercial sanitizers against preformed biofilms were assessed both in terms viability and structure.The formed on polystyrene, stainless steel (SS), polytetrafluoroethylene (PTFE) wide range temperatures (4-25°C) subjected action 10 different sanitizers. showed be strong biofilm-former regardless temperature, particularly polystyrene. mostly sensitive chlorine peracetic acid-based For some (e.g. amphoteric), relationship observed between material tolerance, while temperature not statistically significant. formation long-term SS also structurally affected by showing microcolonies more irregular shape with lower cellularity at 4°C compared 15°C, where biofilm compact high presence EPS.The P. shown quickly adhere form mature materials relevant food sector; however, conditions differently tolerant disinfectants.Findings could provide basis for developing targeted sanitation protocols plants.

Язык: Английский

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Development and Calibration of a Microfluidic, Chip-Based Sensor System for Monitoring the Physical Properties of Water Samples in Aquacultures

Micromachines, Год журнала: 2024, Номер 15(6), С. 755 - 755

Опубликована: Июнь 4, 2024

In this work, we present a compact, bifunctional chip-based sensor setup that measures the temperature and electrical conductivity of water samples, including specimens from rivers channels, aquaculture, Atlantic Ocean. For measurements, utilize impedance amplitude recorded via interdigitated electrode structures at single triggering frequency. The results are well in line with data obtained using calibrated reference instrument. new holds for values spanning almost two orders magnitude (river versus ocean water) without need equivalent circuit modelling. Temperature measurements were performed four-point geometry an on-chip platinum RTD (resistance detector) range between 2 °C 40 °C, showing no hysteresis effects warming cooling cycles. Although meander was not shielded against liquid, calibration provided to low conductive Milli-Q highly water. is therefore suitable inline online monitoring purposes recirculating aquaculture systems.

Язык: Английский

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Patterns of Biofilm Formation by Members of Listeria, Salmonella, and Pseudomonas at Various Temperatures and the Role of Their Synergistic Interactions in the Formation of Biofilm Communities

Microbiology, Год журнала: 2024, Номер 93(5), С. 598 - 609

Опубликована: Сен. 30, 2024

Язык: Английский

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